Iam 26 Years Old. I Had Never Sex With Anyone.

Iam 26 years old. I had never sex with anyone. But i have the habit of masturbation for the last 7 years. When we expose our genitals into the air the scrotum draws up and also while penis erection the scrotum becoming shrinking strongly. These are not happening to me since I stimulated 6 times a gay two days consecutively in February. I have been facing this problem. How to stop the bad habbit over masturbation. I am trying but unable to stop. Now penis erects low. Shrinking and unshrinking of scrotum is not happeng properly. No pain inside the scrotum.How I get back my normal erection. Please suggest me how to get back my normal detection. And also suggest me medicines to get back normal erection without side effects.